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Longman Dictionary of Contemporary English
The Collaborative International Dictionary

Citric \Cit"ric\, a. [Cf. F. citrique. See Citron.] (Chem.) Of, pertaining to, or derived from, the citron or lemon; as, citric acid.

Citric acid (Chem.), an organic acid, C3H4OH.(CO2H)3, extracted from lemons, currants, gooseberries, etc., as a white crystalline substance, having a pleasant sour taste.

Douglas Harper's Etymology Dictionary

1800, from Modern Latin citricum (in acidum citricum "citric acid," discovered by Scheele in 1784; see citrus + -ic. The classical adjective was citreus.


a. Of, pertaining to, or derived from, the citron or lemon.


adj. of or related to citric acid


Usage examples of "citric".

The thing kept a tenacious claw-hold on life until past two in the morning, when it expired with a long moan and a trickle of foul citric saliva.

The juice of Red Currants also contains malic and citric acids, which are cooling and wholesome.

It contains, chemically, citric acid, pectose, gum, sugar, cellulose, albumen, mineral matter, and water.

Each fluid ounce of the fresh juice contains about forty-four grains of citric acid, with gum, sugar, and a residuum, which yields, when incinerated, potash, lime, and phosphoric acid.

But the citric acid of the shops is not nearly so preventive or curative of scurvy as the juice itself.

Chemically they contain tartaric acid when unripe, and both malic and citric acids when ripe.

The juice of Mulberries contains malic and citric acids, with glucose, pectin, and gum.

Chemically the Potato contains citric acid, like that of the lemon, which is admirable against scurvy: also potash, which is equally antiscorbutic, and phosphoric acid, yielding phosphorus in a quantity less only than that afforded by the apple, and by wheat.

Besides containing citric and malic acids, the Raspberry affords a volatile oil of aromatic flavour, with crystallisable sugar, pectin, colouring matter, mucus, some mineral salts, and water.

The chemical constituents of the Strawberry are--a peculiar volatile aroma, sugar, mucilage, pectin, citric and malic acids in equal parts, woody fibre, and water.

Chemically this Love Apple contains citric and malic acids: and it further possesses oxalic acid, or oxalate of potash, in common with the Sorrel of our fields, and the Rhubarb of our kitchen gardens.

The bleaching agents most likely to have been used are oxalic, citric, or hydrochloric acid, bleaching powder solution, or acid sulphite of sodium.

His clothing was so impregnated with the poison that we all began to cough and weep, and a penetrating odour of garlic and citric acid hung about the ward for some time.

On the other hand, the four leaves which had been in the citric acid, when treated with the phosphate, became decidedly inflected in 50 m.

Drosera, as citric and tartaric acids are very sour, yet do not excite inflection.